Ubuntu 启动需要很长时间

Ubuntu 启动需要很长时间

我目前在使用 Ubuntu 16.04 时遇到了一个问题,就是启动时间太长了。以前启动时间大约为 10-15 秒,但现在需要一分钟以上。我有以下日志文​​件,但我不知道该怎么做才能解决这个问题。我刚开始使用 Ubuntu,所以请考虑一下。

文件:https://drive.google.com/file/d/0B-9K5tqHdJPEUW9sdGsyb3EwSU0/view?usp=sharing

编辑,内容/etc/fstab

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda1 during installation
UUID=ecad285f-b614-47b5-981b-95b29a1a3fbf /               ext4    errors=remount-ro 0       1
# /boot/efi was on /dev/sdb1 during installation
#UUID=62C8-F74B  /boot/efi       vfat    umask=0077      0       1
# swap was on /dev/sda2 during installation
UUID=9ac7eade-b72b-492f-8551-5b887cfbdc13 none            swap    sw              0       0
# swap was on /dev/sdb3 during installation
UUID=09a31adc-9b70-4b13-8dc6-6623b43398e2 none            swap    sw              0       0
UUID=B208-F7D9  /boot/efi   vfat    defaults    0   1

答案1

您那里有 2 个交换分区。使用 gparted 删除一个。在终端中执行以下操作:

cat /proc/swaps

查看哪一个已安装并删除另一个。

然后在fstab中删除它

sudo nano /etc/fstab

Ctrl+O保存,Ctrl+X退出并重新启动。

答案2

查看日志---方括号中的数字是秒数:

[   15.039685] audit: type=1400 audit(1485495450.622:10): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/sbin/cupsd//third_party" pid=739 comm="apparmor_parser"
[   15.040640] audit: type=1400 audit(1485495450.622:11): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/sbin/ippusbxd" pid=740 comm="apparmor_parser"
[   15.257862] Adding 4095996k swap on /dev/sda2.  Priority:-1 extents:1 across:4095996k FS
[   99.312609] vboxdrv: module verification failed: signature and/or required key missing - tainting kernel
[   99.316717] vboxdrv: Found 4 processor cores

..似乎延迟发生在交换激活之后,这可能是分区挂载。

您是否尝试安装一些网络共享或类似的东西?

另一个可能的罪魁祸首可能是 VirtualBox --- 但我不知道为什么。

在我的系统中,交换激活后立即systemd-udevd启动:

[    7.254716] Adding 16383996k swap on /dev/sda2.  Priority:-1 extents:1 across :16383996k SSFS
[    7.344977] systemd-udevd[382]: starting version 204
[    7.390723] lp: driver loaded but no devices found
[    7.407371] smsc47b397: found SMSC SCH5317 (base address 0x0480, revision 1)
[    7.408311] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro

因此可能是设备出现故障,或者磁盘本应存在但却不存在。请编辑您的问题并添加 的内容/etc/fstab

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